He most notable job after the presidency was to serve as a US Congressman.
He was no longer president.
John Quincy Adams
1 term in office
I don't think so. The term postdated him.
about 19 years.
He didn't have any regrets
John Adams and John Quincy Adams
John Quincy Adams, the 6th President of the United States, was President throughout the 10th U.S. Presidential Term, March 4, 1825 through March 3, 1829.
John Quincy Adams(March 4, 1825-March 4, 1829)
No- I think the term arose several years after Adams died.
John Quincy Adams
John Adams served 1 term as US President. His son John Quincy Adams also served 1 term as President.